
ReBecca
Hunt-Foster
I am a vertebrate paleontologist based in Utah, and I am interested in the late Jurassic Morrison Formation, as well as the later Cretaceous "Mesaverde" Group and early-mid Cretaceous Ornithomimids of North America. I work on the Colorado Plateau and enjoy traveling and field work.



Publications
Recent publications and articles.
Hunt-Foster, ReBecca K., D. Cary Woodruff, Steven Sroka, and John R. Foster. 2026. The largest reported Stegosaurid from the Morrison Formation (Upper Jurassic). In “New Developments in the Paleontology and Geology of the Upper Jurassic Morrison Formation” (J.R. Foster, K. Trujilo, R.K. Hunt-Foster and S. Lucas, editors) New Mexico Museum of Natural History and Science Bulletin 102: 287-292.
Foster, John R., Kelli C. Trujillo, ReBecca K. Hunt-Foster, Spencer G. Lucas, Kenneth Carpenter, and Brent H. Breithaupt. 2026. An introduction to new developments in the geology and paleontology of the Upper Jurassic Morrison Formation. In “New Developments in the Paleontology and Geology of the Upper Jurassic Morrison Formation” (J.R. Foster, K. Trujilo, R.K. Hunt-Foster and S. Lucas, editors) New Mexico Museum of Natural History and Science Bulletin 102: 1-14.
Trujillo, Kelli C., Kevin R. Chamberlain, John R. Foster, Kenneth Carpenter, Luis M. Chiappe, Brian M. Davis, ReBecca K. Hunt-Foster, Forest Frost, James I. Kirkland, and Joseph E. Peterson. 2026. New CA-ID-TIMS U-PB Zircon dates for the Morrison Formation (Upper Jurassic), Western Interior, USA. In “New Developments in the Paleontology and Geology of the Upper Jurassic Morrison Formation” (J.R. Foster, K. Trujilo, R.K. Hunt-Foster and S. Lucas, editors) New Mexico Museum of Natural History and Science Bulletin 102: 15-34.
Joel Crothers, Jaelyn Eberle, Donald Brinkman, Alyssa Wurtz, Andrew B. Heckert, ReBecca K. Hunt-Foster, John R. Foster, Ida C. Dirkes, and Renee Dunn. 2026. An actinopterygian-dominated fish fauna from the Upper Cretaceous Williams Fork Formation, northwestern Colorado, and evidence for provinciality across Laramidia at the e Campanian/Maastrichtian boundary, Cretaceous Research, https://doi.org/10.1016/ j.cretres.2026.106313.
Kirkland, James I., ReBecca K. Hunt-Foster, Kirsty Morgan, Julia B. McHugh, and John R. Foster. 2025. Differentiating ankylosaur species in the Upper Jurassic Morrison Formation in light of newly recovered skeletal elements of Mymoorapelta maysi from its type locality. Geology of the Intermountain West 12: 315-393, DOI: 10.31711/giw.v12.pp315-393
Tran, Tut, Andrew R.C. Milner, Justin S. Tweet, Donald D. DeBlieux, ReBecca Hunt-Foster, Austin B. Shaffer, James I. Kirkland, Ethan Warner-Cowgill, and Vince L. Santucci. 2025. A visual paleontological inventory of Utah’s National Park Service areas. Geology of the Intermountain West 12: 221-292, DOI: 10.31711/giw.v12.pp221-292.
Thomson, K.D., John R. Foster, and ReBecca K. Hunt-Foster. 2025.Detrital zircon U-Pb data for paleontological localities in the Piceance Creek Basin. U.S. Geological Survey data release, https://doi.org/10.5066/P13BEFPF
Eberle, Jaelyn, Joshua Cohen, John Foster, ReBecca Hunt-Foster, and Andrew Heckert. 2024. A new Late Cretaceous metatherian from the Williams Fork Formation, Colorado. PLoS ONE 19(10): e0310948. https://doi.org/10.1371/journal.pone.0310948
Lessner, J., Corrine Cranor, ReBecca K. Hunt-Foster, and Casey M. Holliday. 2023. Endocranial anatomy of Allosaurus supports neural trends among non-avian theropod dinosaurs. Journal of Vertebrate Paleontology, DOI: 10.1080/02724634.2023.2236161
Hunt-Foster, ReBecca, James Kirkland, and Mark Loewen (editors). 2023. Special Issue: 14th Symposium on Mesozoic Terrestrial Ecosystems and Biota. The Anatomical Record 306(S1): 3-276. https://doi.org/10.1002/ar.25219
Brand, Nikolas A., Andrew B. Heckert, Israel Sanchez, John R. Foster, ReBecca K. Hunt-Foster, Jaelyn J. Eberle. 2022. New Late Cretaceous microvertebrate assemblage from the Campanian–Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications. Acta Palaeontologica Polonica. doi: https://doi.org/10.4202/app.00934.2021
Kirkland, James, John Foster, Don DeBlieux, and ReBecca Hunt-Foster. 2022. New discoveries of Morrison Formation plant fossils expand our knowledge of Jurassic Ecosystems. Utah Geological Survey, Survey Notes. https://geology.utah.gov/map-pub/survey-notes/paleo-news-new-discoveries-of-morrison-formation-plant-fossils-expand-our-knowledge-of-jurassic-ecosystems/
Hunt-Foster, ReBecca K. Fantastic Camarasauruses (from Dinosaur National Monument) and Where to Find Them. Series: Park Paleontology News - Vol. 13, No. 2, https://www.nps.gov/articles/000/fantastic-camarasauruses.htm
Hunt-Foster, ReBecca K. and Matthew Smith. 2020. Preventative Conservation of an Allosaurus skull from Dinosaur National Monument. Series: Park Paleontology News - Vol. 12, No. 1, https://www.nps.gov/articles/preventative-conservation-of-an-allosaurus-skull-from-dinosaur-national-monument.htm
Suarez, Celina A., Joseph Frederickson, Richard L. Cifelli, Jeffrey G. Pittman, Randall L. Nydam, ReBecca K. Hunt-Foster, and Kirsty Morgan. 2021. A newly described vertebrate fauna from the Lower Cretaceous Holly Creek Formation of the Trinity Group, southwest Arkansas, USA. PeerJ 9:e12242. https://doi.org/10.7717/peerj.12242
Lockley, Martin G., Brent H. Breithaupt, Neffra A. Matthews, Kenichiro Shibata, and ReBecca K. Hunt-Foster. 2021. A preliminary report on an early Jurassic Eubrontes-dominated tracksite in the Navajo Sandstone Formation at the Mail Station Dinosaur Tracksite, San Juan County, Utah. Fossil Record 7. New Mexico Museum of Natural History and Science Bulletin 82: 195-208 [link]
Foster, John R., Darrin C. Pagnac, and ReBecca K. Hunt-Foster. 2020. An unusually diverse northern biota from the Morrison Formation (Upper Jurassic), Black Hills, Wyoming: Geology of the Intermountain West, v. 7, p. 29–67, https://doi.org/10.31711/giw.v7. pp29–67.
Kirkland, James I., Don D. DeBlieux, ReBecca K. Hunt-Foster, John R. Foster, Kelli C. Trujillo, and E. Finzel. 2020. The Morrison Formation and its Bounding Strata on the Western Side of the Blanding Basin, San Juan County, Utah. Geology of the Intermountain West, v. 7: 137–195, 3 appendices, https://doi.org/10.31711/giw.v7. pp137–195.
Hunt, ReBecca K. and James Quinn. 2018. A new, primitive ornithomimosaur from the Early Cretaceous of North America. Journal of Vertebrate Paleontology 38(1): DOI: 10.1080/02724634.2017.1421209







